Assembly comprising coaxial cable and right-angled coaxial connector and manufacturing method thereof

ABSTRACT

An assembly includes a right-angled coaxial connector, a first coaxial cable and a second coaxial cable. The right-angled coaxial connector includes a first component and a second component connected to a first coaxial cable and a second coaxial cable respectively. The inner conductor and the outer conductor of the first coaxial cable and the first inner conductor and the first outer conductor of the first component, the inner conductor and the outer conductor of the second coaxial cable and the second inner conductor and the second outer conductor of the second component, as well as the first inner conductor and the first outer conductor of the first component and the second inner conductor and the second outer conductor of the second component are permanently connected in a single welding procedure through a first soldering element, a second soldering element and a third soldering element, respectively.

RELATED APPLICATION

The present application claims priority from and the benefit of ChinesePatent Application No. 201510048293.5, filed Jan. 30, 2015, thedisclosure of which is hereby incorporated herein by reference in itsentirety.

TECHNICAL FIELD

The present application relates to the field of radio frequencycommunication devices, in particular to an assembly comprising a coaxialcable and a right-angled coaxial connector and to a method formanufacturing the assembly.

BACKGROUND

With the continuous development of urbanization and mobilecommunication, small and miniature base stations are becoming mainstreamand find particular use in indoor applications, so that assembliescomprising coaxial cables and right-angled coaxial connectors areincreasingly widely used.

Manufacturing costs of the existing right-angled coaxial connectors arehigh due to relative complex structures of the connector. In order toreduce the cost, multiple-component structures are generally adopted toreduce material waste and processing difficulty, so as to reduce theoverall cost. At present, the right-angled coaxial connectorscommercially available are generally connected into one piece by meansof an interference press-fit, a threaded connection and silver wirebrazing. However, these methods have their own advantages anddisadvantages. Specifically, right-angled coaxial connectors connectedinto one piece through an interference press-fit require sufficientpress fit space and have strict requirements on fit tolerances.Right-angled coaxial connectors connected into one piece through athreaded connection require threading-locking glue, have strictrequirements on torque and have a lower torsional resistance.Right-angled coaxial connectors connected into one piece through silverwire brazing require silver wire brazing of semi-finished products, andas the welding temperature of the silver wire brazing is relativelyhigh, the molecular structures of the metal materials of theright-angled coaxial connectors will be affected. In addition, as thewelding temperature of the silver wire brazing is relatively high, thecoaxial cables and the right-angled coaxial connectors cannot be weldedtogether in a single welding procedure, due to the fact that the platingand the insulating layers of the coaxial cables cannot withstand thewelding temperature of the silver wire brazing. Therefore, for thesilver wire brazing, it is necessary for the various components of theright-angled coaxial connectors to be welded together firstly, and thenthe coaxial cables and the right-angled coaxial connectors are weldedtogether by means a welding process with a lower welding temperature.

SUMMARY

In order to reduce or at least partially overcome the above defects inthe prior art, the present application provides an assembly comprising aright-angled coaxial connector, a first coaxial cable and a secondcoaxial cable. The right-angled coaxial connector comprises:

a first component, the first component being provided with a firstlength direction and a first end along the first length direction, thefirst component being further provided with a first inner conductor anda first outer conductor, wherein the ends of the first inner conductorand the first outer conductor distal to the first end are electricallyconnected with an inner conductor and an outer conductor of the firstcoaxial cable through a first soldering element respectively;

a second component, the second component being provided with a secondlength direction and a second end along the second length direction, thesecond length direction being substantially perpendicular to the firstlength direction, the second component being further provided with asecond inner conductor and a second outer conductor, wherein the ends ofthe second inner conductor and the second outer conductor distal to thesecond end are electrically connected with an inner conductor and anouter conductor of the second coaxial cable through a second solderingelement respectively;

wherein, the first end is provided with a receiving portionsubstantially surrounding an end of the first inner conductor, and thereceiving portion is provided with a first surface substantiallysurrounding a second end of the first inner conductor and substantiallyperpendicular to the end of the first inner conductor and a first sidewall perpendicularly extending from the first surface towards the secondcomponent;

wherein, the second component is provided with a projecting portionsubstantially surrounding a second end of the second inner conductor,and the projecting portion comprises a second side wall extendingparallel to the second inner conductor;

wherein, an outer surface of the second side wall is in interference fitwith an inner surface of the first side wall;

wherein, a third soldering element is further arranged between an endface of the second side wall and the first surface, for permanentlyconnecting the first component and the second component; and

wherein, the inner conductor and the outer conductor of the firstcoaxial cable and the first inner conductor and the first outerconductor, the inner conductor and the outer conductor of the secondcoaxial cable and the second inner conductor and the second outerconductor, as well as the first inner conductor and the first outerconductor of the first component and the second inner conductor and thesecond outer conductor of the second component are permanently connectedin a single welding procedure through the first soldering element, thesecond soldering element and the third soldering element, respectively.

The assembly comprising the coaxial cables and the right-angled coaxialconnector according to the present application at least relieves oravoids the defects of similar assemblies in the prior art. Specifically,compared with right-angled coaxial connectors connected into one pieceonly through interference press-fit, the right-angled coaxial connectorof the assembly of the present application does not require largepress-fit space and strict fit tolerance. Compared with right-angledcoaxial connectors connected into one piece through threaded connection,the right-angled coaxial connector of the assembly of the presentapplication does not require thread-locking glue and has a highertorsional resistance. In addition, compared with right-angled coaxialconnectors connected into one piece through silver wire brazing, as thewelding temperature of the soldering element is much lower than thewelding temperature of silver wire brazing, the right-angled coaxialconnector of the assembly of the present application can be connected inthe case where the first component and the second component of theright-angled coaxial connector are finished products, and the molecularstructure of the metal material of the right-angled coaxial connectorwill not be affected, thereby ensuring the mechanical performance andelectrical performance of the right-angled coaxial connector, andmoreover, since the welding temperature of the soldering element islower, the first and second coaxial cables and the first component andthe second component of the right-angled coaxial connector can besimultaneously welded in a single welding procedure.

In some embodiments, the first, second and third soldering elements aremelted by a high frequency welding machine, and then are cured, so as topermanently connect the first component and the second component as wellas the first coaxial cable and the second coaxial cable.

In some embodiments, the projecting portion comprises an insulatingsleeve arranged between the second side wall and the second innerconductor, and the insulating sleeve abuts against the first surface soas to prevent the melted third soldering element from flowing towardsthe second inner conductor.

In some embodiments, the first surface is provided with a recess at aposition adjacent to the first side wall, and the third solderingelement is arranged in the recess.

In some embodiments, a recess is arranged on the end face of the secondside wall, and the third soldering element is arranged in the recess.

In some embodiments, the receiving portion and the projecting portionare sized in such a manner that the third soldering element is fixedlyclamped between the end face of the second side wall and the firstsurface when the first side wall is in interference fit with the secondside wall.

In some embodiments, at least one ventilation groove in communicationwith the outside of the right-angled coaxial connector is arranged on atleast one of the inner surface of the first side wall and the outersurface of the second side wall, for exhausting gases when melting thethird soldering element.

In some embodiments, an inner edge of the first side wall is rounded orchamfered so as to guide the projecting portion when the projectingportion is inserted in the receiving portion. Therefore, properalignment between the first inner conductor and the second innerconductor can be ensured, so as to achieve a reliable and uniformelectrical connection.

In some embodiments, an outer edge of the second side wall is rounded orchamfered so as to guide the projecting portion when the projectingportion is inserted in the receiving portion. Therefore, properalignment between the first inner conductor and the second innerconductor can be ensured, so as to achieve a reliable and uniformelectrical connection.

In some embodiments, the inner surface of the first side wall and theouter surface of the second side wall are formed into complementarytapering surfaces, for guiding the projecting portion when theprojecting portion is inserted in the receiving portion. Therefore,proper alignment between the first inner conductor and the second innerconductor can be ensured, so as to achieve a reliable and uniformelectrical connection.

In some embodiments, the projecting portion comprises a boss located onthe outer side of the second side wall, and the boss is adjacent to butis not contact with the end face of the first side wall, so that the atleast one ventilation groove is in communication with the outside of theright-angled coaxial connector.

In some embodiments, at least two ventilation grooves in communicationwith the outside of the right-angled coaxial connector are arranged onat least one of the inner surface of the first side wall and the outersurface of the second side wall, and the at least two ventilationgrooves are uniformly distributed around the second inner conductor. Dueto the fact that the at least two ventilation grooves are uniformlydistributed around the second inner conductor, gas generated duringwelding can be uniformly discharged so as to ensure uniform weldingquality.

In addition, the present application further provides a method formanufacturing an assembly comprising a right-angled coaxial connector, afirst coaxial cable and a second coaxial cable. The right-angled coaxialconnector comprises a first component and a second component, and themethod comprises:

providing the first component, wherein the first component is providedwith a first length direction and a first end along the first lengthdirection, and the first component is further provided with a firstinner conductor and a first outer conductor;

providing the first coaxial cable and a first soldering element, aninner conductor and an outer conductor of the first coaxial cable abutthe ends of the first inner conductor and the first outer conductor thatare distal to the first end respectively, and the first solderingelement is located between the first coaxial cable and the firstcomponent;

providing the second component, wherein the second component is providedwith a second length direction and a second end along the second lengthdirection, the second length direction is substantially perpendicular tothe first length direction, and the second component is further providedwith a second inner conductor and a second outer conductor;

providing the second coaxial cable and a second soldering element,wherein an inner conductor and an outer conductor of the second coaxialcable abut the ends of the second inner conductor and the second outerconductor that are distal to the second end, and the second solderingelement is located between the second coaxial cable and the secondcomponent; and

providing a third soldering element, the third soldering element islocated between the first component and the second component;

wherein, the first end is provided with a receiving portionsubstantially surrounding one end of the first inner conductor, and thereceiving portion is provided with a first surface substantiallysurrounding the one end of the first inner conductor and substantiallyperpendicular to the one end of the first inner conductor and a firstside wall perpendicularly extending from the first surface towards thesecond component;

wherein, the second component is provided with a projecting portionsubstantially surrounding one end of the second inner conductor, and theprojecting portion comprises a second side wall extending parallel tothe second inner conductor; and

the method further comprises:

arranging the third soldering element on the end face of the second sidewall and/or on the first surface;

inserting the projecting portion into the receiving portion so as toform an interference fit between the outer surface of the second sidewall and the inner surface of the first side wall, so that and thesoldering element is arranged between the end face of the second sidewall and the first surface; and

simultaneously heating the first, second and third soldering elements tomelt the first, second and third soldering elements, and then curing thefirst, second and third soldering elements so as to permanently connectthe first component, the second component, the first coaxial cable andthe second coaxial cable.

The assembly comprising the coaxial cable and the right-angled coaxialconnector manufactured according to the method of the presentapplication at least relieves or avoids the defects of right-angledcoaxial connector in the prior art. Specifically, compared withright-angled coaxial connectors connected into one piece only throughinterference press-fit, the right-angled coaxial connector of theassembly manufactured according to the method of the present applicationdoes not require large press-fit space and strict fit tolerance.Compared with right-angled coaxial connectors connected into one piecethrough threaded connection, the right-angled coaxial connector of theassembly manufactured according to the method of the present applicationdoes not require thread-locking glue and has a higher torsionalresistance. In addition, compared with right-angled coaxial connectorsconnected into one piece through silver wire brazing, as the weldingtemperature of the soldering element is much lower than the weldingtemperature of silver wire brazing, the right-angled coaxial connectorof the assembly manufactured according to the method of the presentapplication can be connected in the case where the first component andthe second component of the right-angled coaxial connector are finishedproducts, and the molecular structure of the metal material of theright-angled coaxial connector will not be affected, thereby ensuringthe mechanical performance and electrical performance of theright-angled coaxial connector, and moreover, since the weldingtemperature of the soldering element is lower, the first and secondcoaxial cables and the first component and the second component of theright-angled coaxial connector can be simultaneously welded in a singlewelding procedure.

In the method, in some embodiments, the first, second and thirdsoldering elements are melted by the high frequency induction heating.

In some embodiments, the method further comprises providing aninsulating sleeve before inserting the projecting portion into thereceiving portion, the insulating sleeve is arranged between the secondside wall and the second inner conductor, and after the projectingportion is inserted into the receiving portion, the insulating sleeveabuts against the first surface so as to prevent the melted thirdsoldering element from flowing towards the second inner conductor.

In some embodiments, the method further comprises: before inserting theprojecting portion into the receiving portion, forming on the firstsurface a recess for accommodating the third soldering element at aposition adjacent to the first side wall.

In some embodiments, the method further comprises: before inserting theprojecting portion into the receiving portion, forming on the end faceof the second side wall a recess for accommodating the third solderingelement.

In some embodiments, the method further comprises setting the sizes ofthe receiving portion and the projecting portion in such a manner thatthe third soldering element is fixedly clamped between the end face ofthe second side wall and the first surface when the first side wall isin interference fit with the second side wall, so as to ensure that thesoldering element is located at a desired position during subsequentwelding process.

In some embodiments, the method further comprises: before inserting theprojecting portion into the receiving portion, forming, on at least oneof the inner surface of the first side wall and the outer surface of thesecond side wall, at least one ventilation groove in communication withthe outside of the right-angled coaxial connector, for discharging gasgenerated when melting the third soldering element.

In some embodiments, the method further comprises: before inserting theprojecting portion into the receiving portion, rounding or chamferingthe inner edge of the first side wall so as to guide the projectingportion when inserting the projecting portion into the receivingportion. Therefore, proper alignment between the first inner conductorand the second inner conductor can be ensured, so as to obtain areliable and uniform electrical connection.

In some embodiments, the method further comprises: before inserting theprojecting portion into the receiving portion, rounding or chamferingthe outer edge of the second side wall so as to guide the projectingportion when inserting the projecting portion into the receivingportion. Therefore, proper alignment between the first inner conductorand the second inner conductor can be ensured, so as to obtain areliable and uniform electrical connection.

In some embodiments, the method further comprises: before inserting theprojecting portion into the receiving portion, forming the inner surfaceof the first side wall and the outer surface of the second side wallinto complementary tapering surfaces, for guiding the projecting portionwhen inserting the projecting portion into the receiving portion.Therefore, proper alignment between the first inner conductor and thesecond inner conductor can be ensured, so as to obtain a reliable anduniform electrical connection.

In some embodiments, the method further comprises: before inserting theprojecting portion into the receiving portion, forming a boss on theouter side of the second side wall, and the boss is adjacent to but isnot contact with the end face of the first side wall, so that the atleast one ventilation groove is in communication with the outside of theright-angled coaxial connector.

In some embodiments, the method further comprises: before inserting theprojecting portion into the receiving portion, forming, on at least oneof the inner surface of the first side wall and the outer surface of thesecond side wall, at least two ventilation grooves in communication withthe outside of the right-angled coaxial connector, and the at least twoventilation grooves are uniformly distributed around the second innerconductor. Since the at least two ventilation grooves are uniformlydistributed around the second inner conductor, gas generated duringwelding can be uniformly discharged to ensure a uniform welding quality.

In the method, in some embodiments, the first, second and thirdsoldering elements are in the forms of soldering element rings,soldering element wires or soldering element agents.

In the method, in some embodiments, the first, second and thirdsoldering elements are heated for about 10 seconds by means of the highfrequency induction heating so as to melt the first, second and thirdsoldering elements.

In the method, in some embodiments, the first, second and thirdsoldering elements are heated to about 400° C. to melt the first, secondand third soldering elements.

The welding temperature is controlled at about 400° C., so that a higherwelding quality can be achieved, and this welding temperature has noadverse effect on the metal material of the right-angled coaxialconnector and the plating and the insulating layers of the first cablecoaxial and the second coaxial cable. In addition, since the weldingtemperature is lower, unlike silver wire brazing used in the prior artby which two components of the coaxial connector can only be welded whenthe two components are semi-finished products, the first component andthe second component of the right-angled coaxial connector forming theassembly of the present application can be welded at finished productstate. Further, as mentioned above, since the welding temperature of thesoldering element is lower, the first and second coaxial cables and thefirst component and the second component of the right-angled coaxialconnector can be simultaneously welded in a single welding procedure.

According to the above method of the present application, a preliminarypositioning of the first component and the second component of theright-angled coaxial connector is obtained by pre-pressing the firstcomponent and the second components with appropriate tolerance in aguided manner. By appropriately setting the tolerance, the stability ofthe preliminary positioning can be ensured to be high enough to preventthe positions of the first component and the second component fromchanging in the subsequent welding procedures. In addition, thesoldering element is arranged on the first component and/or the secondcomponent in advance; therefore, after the step of preliminarypositioning, the soldering element is fixedly clamped between the firstcomponent and the second component, so as to ensure that the solderingelement is in a desired position in the welding procedure. In addition,in some embodiments, the first side wall and the second side wall mayhave a large chamfer to increase the contact area of the solderingelement. In addition, the joint between the first component and thesecond component, the joint between the first component and the firstcoaxial cable and the joint between the second component and the secondcoaxial cable are heated by high frequency induction welding so as tofully melt the soldering elements at respective joints; therefore, thetwo components of the right-angled coaxial connector as well as thefirst and second coaxial cables can be firmly connected. The assemblycomprising the coaxial cables and the right-angled coaxial connectormanufactured according to the method has a higher connection strengthand more uniform mechanical performance and electrical performance, andthe manufacturing process is simplified and shortened.

In addition, as mentioned above, the widely used high frequency weldingmachine is adopted in the manufacturing method of the presentapplication, and the heating temperature of the high frequency weldingmachine is about 400° C. Since the heating temperature is relativelylower, the high frequency welding machine can be applied to theelectroplated first component and the second component as well as thefirst coaxial cable and the second coaxial cable without damaging asupporting plastic element and sealing elements in the right-angledcoaxial connector and the plating and the insulating layers of the firstand second coaxial cables, let alone damaging the molecular structure ofthe metal material.

BRIEF DESCRIPTION OF THE DRAWINGS

The present application will be described below in more detail by way ofexample with reference to accompanying drawings, in which:

FIG. 1 is a perspective view of a right-angled coaxial connector of anassembly of the present application;

FIG. 2 is a front view of the right-angled coaxial connector of theassembly of the present application;

FIG. 3 is a sectional view of the right-angled coaxial connector of theassembly of the present application along an A-A line in FIG. 2; and

FIG. 4 is a sectional view of the assembly of the present applicationsimilar to FIG. 3, wherein first and second coaxial cables are shown.

DETAILED DESCRIPTION OF THE EMBODIMENTS

Detailed embodiments of the present application will be given by way ofexample with reference to the accompany drawings. It should beunderstood that, the embodiments are not intended to limit the scope ofthe present application. That is, any examples given in the descriptionis not restrictive, but is merely exemplary.

Unless otherwise defined, all technical and scientific terms that areused in this disclosure have the same meaning as commonly understood byone of ordinary skill in the art to which this invention belongs. Theterminology used in the below description is for the purpose ofdescribing particular embodiments only and is not intended to belimiting of the invention. As used in this disclosure, the singularforms “a”, “an” and “the” are intended to include the plural forms aswell, unless the context clearly indicates otherwise. It will also beunderstood that when an element (e.g., a device, circuit, etc.) isreferred to as being “connected” or “coupled” to another element, it canbe directly connected or coupled to the other element or interveningelements may be present. In contrast, when an element is referred to asbeing “directly connected” or “directly coupled” to another element,there are no intervening elements present.

With reference to FIG. 1 to FIG. 4, an assembly 1 according to thepresent application comprises a first coaxial cable 2 and a secondcoaxial cable 3 and a right-angled coaxial connector 100. Theright-angled coaxial connector 100 comprises a first component 10 and asecond component 20. The first component 10 is provided with a firstlength direction L1 and a first end 11 along the first length directionL1. The first component 10 is further provided with a first innerconductor 12 and a first outer conductor. Ends of the first innerconductor 12 and the first outer conductor distal to the first end 11are electrically connected with an inner conductor and an outerconductor of the first coaxial cable 2 through a first soldering element(not shown). The second component 20 is provided with a second lengthdirection L2 and a second end 21 along the second length direction L2.The second length direction L2 is substantially perpendicular to thefirst length direction L1. The second component 20 is further providedwith a second inner conductor 22 and a second outer conductor. Ends ofthe second inner conductor 22 and the second outer conductor distal tothe second end 21 is electrically connected with the inner conductor andthe outer conductor of the second coaxial cable 3 through a secondsoldering element (not shown). The first end 11 is provided with areceiving portion 13 substantially surrounding one end 12 a of the firstinner conductor 12. The receiving portion 13 is provided with a firstsurface 14 substantially surrounding the one end 12 a of the first innerconductor 12 and substantially perpendicular to the one end 12 a of thefirst inner conductor 12 and a first side wall 15 extendingperpendicularly from the first surface 14 towards the second component20. The second component 20 is provided with a projecting portion 23substantially surrounding one end 22 a of the second inner conductor 22.The projecting portion 23 comprises a second side wall 24 extendingparallel to the second inner conductor. An outer surface 24 a of thesecond side wall 24 is in interference fit with the inner surface 15 aof the first side wall 15, so that the second side wall 24 and the firstside wall 15 can be mutually fixed by the interference fit only. A thirdsoldering element 30 is further arranged between the end face 24 b ofthe second side wall 24 and the first surface 14. The inner conductorand the outer conductor of the first coaxial cable 2 and the first innerconductor 12 and the first outer conductor, the inner conductor and theouter conductor of the second coaxial cable 2 and the second innerconductor 22 and the second outer conductor, as well as the first innerconductor and the first outer conductor of the first component 10 andthe second inner conductor and the second outer conductor of the secondcomponent 20 are permanently connected through the first solderingelement, the second soldering element and the third soldering element30, respectively, in a single welding procedure.

The right-angled coaxial connector 100 of the assembly of the presentapplication at least relieves or avoids the defects of the right-angledcoaxial connector in the prior art. Specifically, compared with theright-angled coaxial connectors connected into one piece only through aninterference press-fit, right-angled coaxial connector 100 of theassembly of the present application does not require larger press fitspace and strict fit tolerance. Compared with right-angled coaxialconnectors connected into one piece through a threaded connection, theright-angled coaxial connector 100 of the assembly of the presentapplication does not require thread-locking glue and has a highertorsional resistance. In addition, compared with right-angled coaxialconnectors connected into one piece through silver wire brazing, sincethe welding temperatures of the first, second and third solderingelements are much lower than the welding temperature of silver wirebrazing, the right-angled coaxial connector 100 of the assembly of thepresent application can be connected in the case where the firstcomponent and the second component of the right-angled coaxial connectorare finished products, and the molecular structure of the metal materialof the right-angled coaxial connector will not be affected, therebyensuring the mechanical performance and electrical performance of theright-angled coaxial connector. Moreover, since the welding temperatureof the soldering element is lower, the first component 10, the secondcomponent 20, the first coaxial cable and the second coaxial cable maybe simultaneously welded together in a single welding procedure.

The third soldering element 30 and the first and second solderingelements are melted by heating of a high frequency welding machine, andthen are cured to permanently connect the first component, the secondcomponent and the first and second coaxial cables.

The projecting portion 23 comprises an insulating sleeve 40 arrangedbetween the second side wall 24 and the second inner conductor 22, andthe insulating sleeve 40 abuts against the first surface 14 so as toprevent the melted third soldering element 30 from flowing towards thesecond inner conductor 22.

The first surface 14 is provided with a recess 50 at a position adjacentto the first side wall 15, and the third soldering element 30 isarranged in the recess 50. In addition, In some embodiments, acorresponding recess (not shown) is arranged on the end face 24 b of thesecond side wall 24, and the third soldering element 30 is also arrangedin the corresponding recess.

In one embodiment of the present application, the receiving portion 13and the projecting portion 23 are sized in such a manner that the thirdsoldering element 30 is fixedly clamped between the end face 24 b of thesecond side wall 24 and the first surface 14 when the first side wall 15is in interference fit with the second side wall 24, therefore, thethird soldering element 30 remains at a desired position in thesubsequent welding process.

In one embodiment of the present application, at least one ventilationgroove (not shown) in communication with the outside of the right-angledcoaxial connector 100 is arranged on at least one of the inner surface15 a of the first side wall 15 and the outer surface 24 a of the secondside wall 24, for discharging gas when melting the third solderingelement 30. In some embodiments, at least two ventilation grooves (notshown) in communication with the outside of the right-angled coaxialconnector 100 are arranged on at least one of the inner surface 15 a ofthe first side wall 15 and the outer surface 24 a of the second sidewall 24, and the at least two ventilation grooves are uniformlydistributed around the second inner conductor 22. Since the at least twoventilation grooves are uniformly distributed around the second innerconductor 22, gas generated during welding can be uniformly dischargedso as to ensure a uniform welding quality.

In one embodiment of the present application, the inner edge 15 b of thefirst side wall 15 is rounded or chamfered (FIG. 3 shows that the inneredge 15 b is chamfered) to guide the projecting portion 23 when theprojecting portion 23 is inserted into the receiving portion 13.Therefore, proper alignment between the first inner conductor 12 and thesecond inner conductor 22 can be ensured, so as to obtain a reliable anduniform electrical connection.

In one embodiment of the present application, the outer edge 24 c of thesecond side wall 24 is also rounded or chamfered to guide the projectingportion 23 when the projecting portion 23 is inserted into the receivingportion 13. Therefore, proper alignment between the first innerconductor 12 and the second inner conductor 22 can be ensured, so as toobtain a reliable and uniform electrical connection.

Optionally, in one embodiment of the present application, the innersurface 15 a of the first side wall 15 and the outer surface 24 a of thesecond side wall 24 are formed into complementary tapering surfaces, forguiding the projecting portion 23 when the projecting portion 23 isinserted into the receiving portion 13. Therefore, proper alignmentbetween the first inner conductor 12 and the second inner conductor 22can be ensured, so as to obtain a reliable and uniform electricalconnection.

In some embodiments, the projecting portion 23 comprises a boss 25located on the outer side of the second side wall 24, and the boss 25 isadjacent to but is not contact with the outer end face of the first sidewall 15, so that the at least one ventilation groove (not shown) is incommunication with the outside of the right-angled coaxial connector100.

A method for manufacturing the assembly comprising the coaxial cable andthe right-angled coaxial connector according to the present applicationwill be described below in detail with reference to the accompanydrawings.

First, the first component 10 and the second component 20 having theabove structures are formed, and the third soldering element 30, thefirst coaxial cable and, the first soldering element as well as thesecond coaxial cable and the second soldering element are provided. Theinner conductor and the outer conductor of the first coaxial cable 2 arerespectively adjoined with the ends of the first inner conductor 12 andthe first outer conductor of the first component 10 that are distal tothe first end, and the first soldering element is located between thefirst coaxial cable 2 and the first component 10. Moreover, the innerconductor and the outer conductor of the second coaxial cable 3 arerespectively adjoined with the ends of the second inner conductor 22 andthe second outer conductor of the second component 20 that are distal tothe second end, and the second soldering element is located between thesecond coaxial cable 3 and the second component 20. Then, the thirdsoldering element 30 is arranged on the end face 24 b of the second sidewall 24 and/or in the recess 50 of the first surface 14, and theprojecting portion 23 is inserted into the receiving portion 13, so thatthe outer surface 24 a of the second side wall 24 is in an interferencefit with the inner surface 15 a of the first side wall 15. Sizes and thetolerances of the outer surface 24 a of the second side wall 24 and theinner surface 15 a of the first side wall 15 are appropriately set so asto ensure that the second side wall 24 and the first side wall 15 can bemutually fixed through the interference fit only and the third solderingelement 30 is fixedly clamped between the end face 24 b of the secondside wall 24 and the first surface 14. Since the chamfered surfacesand/or rounded surfaces and/or the tapering surfaces are provided, theprojecting portion 23 can be properly guided when the projecting portion23 is inserted into the receiving portion 13, so that the adjoined endsof the first inner conductor 12 and the second inner conductor 22 arealigned to obtain a good connecting performance. Then, the firstsoldering element, the second soldering element and the third solderingelement 30 are simultaneously heated by the high frequency inductionwelding machine to melt the soldering elements. Then, the firstsoldering element, the second soldering element and the third solderingelement 30 cure so as to permanently connect the first component 10 andthe second component 20 as well as the first coaxial cable 2 and thesecond coaxial cable 3 simultaneously.

The assembly comprising the coaxial cables and the right-angled coaxialconnector 100 manufactured according to the method of the presentapplication at least relieves or avoids the defects of the right-angledcoaxial connector in the prior art. Specifically, compared withright-angled coaxial connectors connected into one piece only through aninterference press fit, the right-angled coaxial connector 100 of theassembly manufactured according to the method of the present applicationdoes not require large press fit space and strict fit tolerance.Compared with right-angled coaxial connectors connected into one piecethrough a threaded connection, the right-angled coaxial connector 100 ofthe assembly manufactured according to the method of the presentapplication does not require thread-locking glue and has a highertorsional resistance. In addition, compared with right-angled coaxialconnectors connected into one piece through silver wire brazing, sincethe welding temperatures of the first, second and third solderingelements are much lower than the welding temperature of silver wirebrazing, the right-angled coaxial connector 100 of the assemblymanufactured according to the method of the present application can beconnected in the case where the first component and the second componentof the right-angled coaxial connector are finished products, and themolecular structure of the metal material of the right-angled coaxialconnector will not be affected, thereby ensuring the mechanicalperformance and electrical performance of the right-angled coaxialconnector. Moreover, since the welding temperature of the solderingelement is lower, the first component 10 and the second component 20 ofthe right-angled coaxial connector as well as the corresponding firstand second coaxial cables can be simultaneously welded together in asingle welding procedure.

In one embodiment of the present application, optionally, the thirdsoldering element 30 and the first and second soldering elements are inthe form of soldering element rings (as shown in FIG. 3), solderingelement wires or soldering element agents.

In one embodiment of the present application, optionally, the thirdsoldering element 30 and the first and second soldering elements areheated for about 10 seconds by the high frequency induction heating tomelt the first, second and third soldering elements.

In one embodiment of the present application, optionally, the first,second and third soldering elements are heated to about 400° C. to meltthese soldering elements.

The welding temperature is controlled at about 400° C., so that higherwelding quality can be achieved, and this welding temperature has noadverse effect on the metal material of the right-angled coaxialconnector 100 and the plating and the insulating layers of the firstcoaxial cable and the coaxial second cable. In addition, since the 400°C. welding temperature is relatively lower, unlike silver wire brazingused in the prior art by which two components of the coaxial connectorcan only be welded when the two components are semi-finished products,the first component 10 and the second component 20 of the right-angledcoaxial connector 100 forming the assembly of the present applicationcan be welded at a finished product state. Further, as mentioned above,since the 400° C. welding temperature of the soldering element isrelatively lower, the first component 10 and the second component 20 ofthe right-angled coaxial connector as well as the corresponding firstand second coaxial cables can be simultaneously welded together in asingle welding procedure.

According to the above method of the present application, a preliminarypositioning of the first component 10 and the second component 20 of theright-angled coaxial connector 100 is obtained by pre-pressing the firstcomponent 10 and the second component 20 with appropriate tolerance in aguided manner. By appropriately setting the tolerance, the strength ofthe preliminary positioning can be ensured to be high enough to preventthe positions of the first component 10 and the second component 20 fromchanging in the subsequent welding procedure. In addition, the thirdsoldering element 30 is arranged on the first component 10 and/or thesecond component 20 in advance, therefore after the step of preliminarypositioning, the third soldering element is fixedly clamped between thefirst component 10 and the second component 20, so as to ensure that thethird soldering element 30 is in a desired position in the weldingprocedure. In addition, In some embodiments, the first side wall 15 andthe second side wall 24 may have a large chamfer to increase the contactarea of the third soldering element 30. In addition, the joint betweenthe first component 10 and the second component 20, the joint betweenthe first component and the first coaxial cable and the joint betweenthe second component and the second coaxial cable are heated by highfrequency induction welding so as to fully melt the soldering elementsat respective joints, therefore, the first and second components 10 and20 of the right-angled coaxial connector as well as the first and secondcoaxial cables can be firmly connected. The assembly comprising thecoaxial cables and the right-angled coaxial connector manufacturedaccording to the method has a higher connection strength and moreuniform mechanical performance and electrical performance.

In addition, as mentioned above, the widely used high frequency weldingmachine is adopted in the manufacturing method of the presentapplication, and the heating temperature of the high frequency weldingmachine is about 400° C. Since the heating temperature is relativelylower, the high frequency welding machine can be applied to theelectroplated first component 10 and the second component 20 as well asthe first coaxial cable and the second coaxial cable without damaging asupporting plastic element and sealing elements in the right-angledcoaxial connector and the plating and the insulating layers of the firstand second coaxial cables, let alone damaging the molecular structure ofthe metal material.

Some embodiments of the present application are illustrated above withreference to the accompanying drawings. Those skilled in the art towhich the present application pertains should understand that, specificstructures and manufacturing processes shown in the embodiments aremerely exemplary, rather than limiting. It is intended that the presentapplication cover the modifications and variations of the applicationprovided they come within the scope of the appended claims and theirequivalents.

1. An assembly comprising a right-angled coaxial connector, a firstcoaxial cable and a second coaxial cable, and the right-angled coaxialconnector comprising: a first component provided with a first lengthdirection and a first end along the first length direction, the firstcomponent being further provided with a first inner conductor and afirst outer conductor, and the ends of the first inner conductor and thefirst outer conductor that are distal to the first end beingelectrically connected with an inner conductor and an outer conductor ofthe first coaxial cable respectively through a first soldering element;a second component provided with a second length direction substantiallyperpendicular to the first length direction and a second end along thesecond length direction, the second component being further providedwith a second inner conductor and a second outer conductor, and the endsof the second inner conductor and the second outer conductor that aredistal to the second end being electrically connected with an innerconductor and an outer conductor of the second coaxial cablerespectively through a second soldering element; wherein, the first endis provided with a receiving portion substantially surrounding a secondend of the first inner conductor, and the receiving portion is providedwith a first surface substantially surrounding the second end of thefirst inner conductor and substantially perpendicular to the end of thefirst inner conductor and a first side wall perpendicularly extendingfrom the first surface towards the second component; wherein, the secondcomponent is provided with a projecting portion substantiallysurrounding a second end of the second inner conductor, and theprojecting portion comprises a second side wall extending parallel tothe second inner conductor; wherein, an outer surface of the second sidewall is in interference fit with an inner surface of the first sidewall; wherein, a third soldering element is further arranged between anend face of the second side wall and the first surface; and wherein, aninner conductor and an outer conductor of the first coaxial cable andthe first inner conductor and the first outer conductor, an innerconductor and an outer conductor of the second coaxial cable and thesecond inner conductor and the second outer conductor, as well as thefirst inner conductor and the first outer conductor of the firstcomponent and the second inner conductor and the second outer conductorof the second component are permanently connected in a single weldingprocedure through the first soldering element, the second solderingelement and the third soldering element, respectively.
 2. The assemblyaccording to claim 1, characterized in that, the first, second and thirdsoldering elements are melted by a high frequency welding machine, andthen are cured, so as to permanently connect the first component and thesecond component as well as the first coaxial cable and the secondcoaxial cable.
 3. The assembly according to claim 1, characterized inthat, the projecting portion comprises an insulating sleeve arrangedbetween the second side wall and the second inner conductor, and theinsulating sleeve abuts against the first surface so as to prevent themelted third soldering element from flowing towards the second innerconductor.
 4. The assembly according to claim 1, characterized in that,the first surface is provided with a recess at a position adjacent tothe first side wall, and the third soldering element is arranged in therecess.
 5. The assembly according to claim 1, characterized in that, arecess is arranged on the end face of the second side wall, and thethird soldering element is arranged in the recess.
 6. The assemblyaccording to claim 1, characterized in that, the receiving portion andthe projecting portion are sized in such a manner that the thirdsoldering element is fixedly clamped between the end face of the secondside wall and the first surface when the first side wall is ininterference fit with the second side wall.
 7. The assembly according toclaim 1, characterized in that, at least one ventilation groove incommunication with the outside of the right-angled coaxial connector isarranged on at least one of the inner surface of the first side wall andthe outer surface of the second side wall.
 8. The assembly according toclaim 1, characterized in that, at least two ventilation grooves incommunication with the outside of the right-angled coaxial connector arearranged on at least one of the inner surface of the first side wall andthe outer surface of the second side wall, and the at least twoventilation grooves are uniformly distributed around the second innerconductor.
 9. A method for manufacturing an assembly comprising aright-angled coaxial connector, a first coaxial cable and a secondcoaxial cable, the right-angled coaxial connector comprising a firstcomponent and a second component, characterized in that, the methodcomprising: providing the first component with a first length directionand a first end along the first length direction, the first componentbeing further provided with a first inner conductor and a first outerconductor; providing the first coaxial cable and a first solderingelement, an inner conductor and an outer conductor of the first coaxialcable abutting the ends of the first inner conductor and the first outerconductor that are distal to the first end respectively, and the firstsoldering element being located between the first coaxial cable and thefirst component; providing the second component provided with a secondlength direction substantially perpendicular to the first lengthdirection and a second end along the second length direction, the secondcomponent being further provided with a second inner conductor and asecond outer conductor; providing the second coaxial cable and a secondsoldering element, an inner conductor and an outer conductor of thesecond coaxial cable abutting the ends of the second inner conductor andthe second outer conductor that are distal to the second end, and thesecond soldering element being located between the second coaxial cableand the second component; and providing a third soldering element, thethird soldering element being located between the first component andthe second component; wherein, the first end is provided with areceiving portion substantially surrounding one end of the first innerconductor, and the receiving portion is provided with a first surfacesubstantially surrounding the one end of the first inner conductor andsubstantially perpendicular to the one end of the first inner conductorand a first side wall perpendicularly extending from the first surfacetowards the second component; wherein, the second component is providedwith a projecting portion substantially surrounding one end of thesecond inner conductor, and the projecting portion comprises a secondside wall extending parallel to the second inner conductor; and themethod further comprises: arranging the third soldering element on theend face of the second side wall and/or on the first surface; insertingthe projecting portion into the receiving portion so as to form aninterference fit between the outer surface of the second side wall andthe inner surface of the first side wall, so that the second side walland the first side wall can be mutually fixed by the interference fitonly, and the third soldering element is arranged between the end faceof the second side wall and the first surface; and simultaneouslyheating the first, second and third soldering elements to melt thefirst, second and third soldering elements, and then curing the first,second and third soldering elements so as to permanently connect thefirst component, the second component, the first coaxial cable and thesecond coaxial cable.
 10. The method according to claim 9, characterizedin that, the first, second and third soldering elements are melted bythe high frequency induction heating.
 11. The method according to claim9, characterized in that, further comprising providing an insulatingsleeve before inserting the projecting portion into the receivingportion, the insulating sleeve being arranged between the second sidewall and the second inner conductor, and after the projecting portion isinserted into the receiving portion, the insulating sleeve abuts againstthe first surface so as to prevent the melted third soldering elementfrom flowing towards the second inner conductor.
 12. The methodaccording to claim 9, characterized in that, further comprising: beforeinserting the projecting portion into the receiving portion, forming onthe first surface a recess for accommodating the third soldering elementat a position adjacent to the first side wall.
 13. The method accordingto claim 9, characterized in that, further comprising: before insertingthe projecting portion into the receiving portion, forming on the endface of the second side wall a recess for accommodating the thirdsoldering element.
 14. The method according to claim 9, characterized inthat, further comprising setting the sizes of the receiving portion andthe projecting portion in such a manner that the third soldering elementis fixedly clamped between the end face of the second side wall and thefirst surface when the first side wall is in interference fit with thesecond side wall.
 15. The method according to claim 9, characterized inthat, further comprising: before inserting the projecting portion intothe receiving portion, forming, on at least one of the inner surface ofthe first side wall and the outer surface of the second side wall, atleast one ventilation groove in communication with the outside of theright-angled coaxial connector, for discharging gas generated whenmelting the third soldering element.
 16. The method according to claim9, characterized in that, further comprising: before inserting theprojecting portion into the receiving portion, forming, on at least oneof the inner surface of the first side wall and the outer surface of thesecond side wall, at least two ventilation grooves in communication withthe outside of the right-angled coaxial connector, wherein, the at leasttwo ventilation grooves are uniformly distributed around the secondinner conductor.
 17. The method according to claim 9, characterized inthat, the first, second and third soldering elements are in the forms ofsoldering element rings, soldering element wires or soldering elementagents.
 18. The method according to claim 10, characterized in that, thefirst, second and third soldering elements are heated for about 10seconds by means of the high frequency induction heating so as to meltthe first, second and third soldering elements.
 19. The method accordingto claim 10, characterized in that, the first, second and thirdsoldering elements are heated to about 400 ° C. so as to melt the first,second and third soldering elements.